a healer is most powerful a dps will make life better Which specific class you choose really doesn't matter much
Get rid of the enchanter, and run Warrior, Wizard, Wizard, With Healer merc, and 2 wizard mercs. I run this 3 box and its unreal. Alternate Alliance with your wizards, and watch everything blow in like 2 seconds. Only problem with this 3 box is you can run out of mobs and be waiting around the killing is so fast =)
cleric or druid if you keep the ench. Then you have tanks, heals & cc covered and just need dps. Bad dps is less likely to get you killed than bad healing or bad tanking. druid will make travels easier but you'll lose a little in the hp buff / heal power to compensate.
